DNS & Network Tools
23 free dns & network tools, fast, private and no sign-up required. Pick a tool below and get straight to work.
DNS Propagation Checker
Check if your DNS changes have spread across global resolvers and see what each one currently returns.
DNS Lookup
Look up A, MX, TXT, CNAME and NS records for any domain
WHOIS Lookup
Find out who owns any domain, registrar, dates and more
SPF Checker
Check SPF records and validate your domain sender policy
DKIM Checker
Verify DKIM records and inspect the public key for any domain
DMARC Checker
Look up DMARC records and grade your domain policy strength
Email DNS Health Checker
Test MX, SPF, DKIM and DMARC in one combined report
DNSSEC Checker
Check if a domain is signed with DNSSEC and validate the chain
Domain Age Checker
Find out how old any domain is from its WHOIS creation date
Domain Expiry Checker
See when any domain expires and how many days are left
Subdomain Finder
Discover subdomains of any domain from public certificate logs
Domain Availability Checker
Check whether a domain name looks registered or available
Redirect Checker
Trace every hop of a URL redirect chain, step by step
Website Uptime Checker
Check if any website is up right now
HTTP Headers Checker
See every HTTP header a website sends
Ping Tool
Measure real network latency to any host
SPF Record Generator
Build a valid SPF record without memorizing syntax
DMARC Record Generator
Build a correct DMARC DNS record with a guided form
BIMI Checker
Check your BIMI record and brand logo setup
Email Provider Detector
Find out which email service a domain uses
DNS Provider Detector
Find out which DNS provider a domain uses
Reverse IP Lookup
Find other domains hosted on the same IP address
What's My IP
See your public IP address and location hints